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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Guernsey Dam #2 Threshold Days by Year (USC00484126)

15 fixed thresholds counted per year at Guernsey Dam #2 (USC00484126): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Guernsey Dam #2 Thresholds

  • Guernsey Dam #2: days with 10 mm (0.39 in) or more of precipitation in 32 years, most in 2025 with 17.
  • Guernsey Dam #2: days with 25 mm (0.98 in) or more of precipitation in 23 years, most in 1977 with 5.
  • Guernsey Dam #2: days with a maximum temperature at or above 30 C (86 F) in 6 years, most in 2020 with 88.
  • Guernsey Dam #2: days with a maximum temperature at or above 35 C (95 F) in 6 years, most in 2021 with 38.
  • 15 fixed thresholds have at least one qualifying day at Guernsey Dam #2.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Guernsey Dam #2 Days per year at Guernsey Dam #2 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 88 in 2020. 02550751001963: 832019: 562020: 882021: 832022: 812025: 67196320192020202120222025
Days per year at Guernsey Dam #2 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 88 in 2020.
Days at or above 30 C (86 F) per year at Guernsey Dam #2
YearDaysDecade average
19638383
20195656
20208879.8
20218379.8
20228179.8
20256779.8
First to last qualifying date each year at Guernsey Dam #2 For each year, a bar from the first to the last day at Guernsey Dam #2 meeting 30 C (86 F). 1963: 7 May 1963 to 5 October 19632019: 6 June 2019 to 29 September 20192020: 30 April 2020 to 8 October 20202021: 3 June 2021 to 5 October 20212022: 16 May 2022 to 28 September 20222025: 12 May 2025 to 3 October 2025196320192020202120222025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Guernsey Dam #2 meeting 30 C (86 F).
First to last qualifying date each year at Guernsey Dam #2
YearFirst dateLast date
19631963-05-071963-10-05
20192019-06-062019-09-29
20202020-04-302020-10-08
20212021-06-032021-10-05
20222022-05-162022-09-28
20252025-05-122025-10-03

Every Fixed Threshold

Fixed thresholds at Guernsey Dam #2
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days688202067
35 C (95 F): Days638202127
90 F (32.2 C): Days663202047
100 F (37.8 C): Days61320224
0 C (32 F): Ice days (max646201927
0 C (32 F): Frost days (min61762019147
-10 C (14 F): Days with min662201944
-20 C (-4 F): Days with min61619638
-30 C (-22 F): Days with min1219632
20 C (68 F): Tropical nights (min5420222
10 mm (0.39 in): Days with 10 mm or more rain3217202517
25 mm (0.98 in): Days with 25 mm or more rain23519771
50 mm (1.97 in): Days with 50 mm or more rain5219671
10 cm (3.9 in): Days with 10 cm or more snowfall5119631
25 cm (9.8 in): Days with 25 cm or more snowfall2119881

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.

Download the Data

  • Data for Guernsey Dam #2 threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).